CN112136337A

CN112136337A - Downlink control signaling transmission method and related product

Info

Publication number: CN112136337A
Application number: CN201980020090.1A
Authority: CN
Inventors: 林亚男; 徐婧
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-12-25
Anticipated expiration: 2039-04-09
Also published as: CN112136337B; WO2020206605A1

Abstract

A downlink control signaling transmission method and related products comprise: receiving a first downlink control signaling (DCI), wherein the first DCI does not comprise a priority indication information field; receiving a second DCI, wherein the second DCI comprises a priority indication information field, and transmission resources corresponding to the first DCI are partially overlapped or completely overlapped with transmission resources corresponding to the second DCI; and determining the priority of the channel or information corresponding to the first DCI according to the target information domain in the first DCI. On the premise of ensuring that the first DCI payload size is not changed, a priority indication can be provided to support flexible scheduling of the URLLC.

Description

Downlink control signaling transmission method and related product

Technical Field

The present application relates to the field of communications technologies, and in particular, to a downlink control signaling transmission method and a related product.

Background

A Physical Downlink Control Channel (PDCCH) carries Downlink Control signaling (DCI) sent by the network device to the terminal device. The PDCCH may support a plurality of Downlink control information formats and aggregation levels, where DCI formats 0_0 and 0_1 are used for scheduling a Physical Uplink Shared Channel (PUSCH), and DCI formats 1_0 and 1_1 are used for scheduling a Physical Downlink Shared Channel (PDSCH). Different DCI formats essentially correspond to different information payload sizes (payload sizes), and more formats results in more complexity for blind detection. In order to reduce the complexity of blind detection of the terminal equipment as much as possible, the number of different DCI load sizes detected in each time slot is limited to be not more than 4, and the number of different DCI load sizes scrambled by a cell radio network temporary identifier (C-RNTI) is not more than 3. In order to satisfy the restriction on the DCI payload size, the length of DCI format 0_0 is always kept identical to the length of DCI format 1_ 0. If the number of information bits in DCI format 0_0 is not equal to the number of information bits in DCI format 1_0, zero padding or truncation needs to be performed on the information bits in DCI format 0_0 or DCI format 1_0, so as to ensure that the load sizes of DCI format 0_0 and DCI format 1_0 are equal.

Ultra-high-reliable low-latency (URLLC) traffic is characterized by Ultra-high-reliability (e.g., 99.999%) transmissions within extreme latency (e.g., 1 ms). Compared with enhanced Mobile Broadband (eMBB) service, the processing delay of the URLLC is obviously shortened. When the terminal equipment supports both eMBB and URLLC services, in order to ensure the short delay of URLLC, the post-scheduled URLLC channel occupies the resources of the eMBB channel scheduled first.

However, in order to ensure basic data connection of the terminal device, the content in the current DCI format 0_0 and DCI format 1_0 needs to be ensured to be stable, and the priority indication information field cannot be increased, so that the terminal device cannot acquire the priority of the channel or information corresponding to DCI format 0_0 and DCI format 1_ 0. In order to ensure that the terminal device acquires the URLLC priority information, it cannot use DCI format 0_0 and DCI format 1_0 for scheduling, thereby causing URLLC scheduling limitation.

Disclosure of Invention

Embodiments of the present application provide a downlink control signaling transmission method and a related product, which can provide a priority indication to support flexible scheduling of a URLLC on the premise of ensuring that a first DCI load size is not changed.

In a first aspect, an embodiment of the present application provides a method for transmitting a downlink control signaling, including:

a terminal device receives a first downlink control signaling DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a Downlink Assignment Index (DAI) field in the first DCI;

and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the format of the first DCI or the target information domain in the first DCI.

In a second aspect, an embodiment of the present application provides another downlink control signaling transmission method, including:

a network device configures a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

and the network equipment sends the first DCI to terminal equipment.

In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing the method design in the first aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the terminal device includes a processor configured to enable the terminal device to perform the corresponding functions of the above-described method. Further, the terminal device may further include a communication interface for supporting communication between the terminal device and the network device. Further, the terminal device may also include a memory for coupling with the processor that retains program instructions and data necessary for the terminal device.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing the method design in the second aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding functions of the above-described method. Further, the network device may further include a transceiver for supporting communication between the network device and the terminal device. Further, the network device may also include a memory for coupling with the processor that retains program instructions and data necessary for the network device.

In a fifth aspect, an embodiment of the present application provides a terminal device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods of the first aspect of the embodiment of the present application.

In a sixth aspect, embodiments of the present application provide a network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the second aspect of the embodiments of the present application.

In a seventh aspect, this application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps as described in any one of the methods of the first aspect of this application.

In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in any one of the methods in the second aspect of the present application.

In a ninth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

In a tenth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps as described in any one of the methods of the second aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the terminal device may determine the priority of the channel or the information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI, and provide a priority indication on the premise of ensuring that the load size of the first DCI is not changed (i.e., compatibility is not affected, blind detection of the terminal is not affected, and basic data connection is not affected), so as to support flexible scheduling of the URLLC.

Drawings

Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.

Fig. 1 is a system architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a method for transmitting downlink control signaling according to an embodiment of the present application;

fig. 3 is a flowchart illustrating another downlink control signaling transmission method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of another terminal device provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an Advanced Long Term Evolution (LTE-a) system, a New Radio (NR) system, an Evolution system of an NR system, an LTE (LTE-based access to unlicensed spectrum, LTE-U) system over an unlicensed band, an NR-U system, a Wireless Local Area Network (WLAN), a Wireless Fidelity (WiFi), a next-generation communication system, or other communication systems.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device may be a mobile switching center, a relay station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a future evolved communication system, and the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 and the network device 110 may be connected wirelessly or by wire. When the terminal device 120 is wirelessly connected with the network device 110, the terminal device may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved communication system, etc.

Optionally, D2D communication may be performed between terminal device 120 and other terminal devices or user devices.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 schematically shows a communication system 100, wherein the communication system 110 comprises a network device 110 and two terminal devices 120. Optionally, the communication system 100 may include a plurality of network devices and each network device may include one or more terminal devices within a coverage area thereof, which is not limited in this embodiment of the application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In a conventional communication system, when a terminal device supports both eMBB and URLLC services, in order to ensure short delay of URLLC, a post-scheduled URLLC channel may occupy resources of a pre-scheduled eMBB channel. At this time, if the terminal device can distinguish the priority of the channel with overlapped resources, it can be guaranteed that the channel with high priority is transmitted. Therefore, a priority indication information field can be added in the DCI format, and the priority indication information field is used for informing the terminal device of the priority of the current DCI corresponding to the channel or information. However, in order to ensure basic data connection of the terminal device, the content in DCI format 0_0 and DCI format 1_0 needs to be ensured to be stable, and the priority indication information field cannot be increased, so that the terminal device cannot acquire the priority of the information corresponding to DCI format 0_0 and DCI format 1_ 0. In order to ensure that the terminal device acquires the URLLC priority information, it cannot use DCI format 0_0 and DCI format 1_0 for scheduling, thereby causing URLLC scheduling limitation.

In view of the above problems, the embodiments of the present application propose the following embodiments, which are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a diagram of a downlink control signaling transmission method provided in an embodiment of the present application, which is applied to the above exemplary communication system, and the method includes:

s201, the network device configures a target information field in the first DCI, where the target information field is used to indicate a priority of a channel or information scheduled by the first DCI.

In one implementation, the target information field may be a Padding bits or a Downlink Assignment Index (DAI) field. For example, the network device may configure N bits in a target information field for indicating the priority of a channel or information scheduled by the first DCI, where the length of the target information field is L bits, N is the length of a priority indication information field included in the second DCI, L ≧ N, and L and N are positive integers. For another example, the network device may configure M bits in the target information field to indicate the priority of the channel or information scheduled by the first DCI, where M is ≦ L, L < N, and M is a positive integer.

In one implementation, the first DCI may be a DCI having a format of 0_0 or 1_ 0. Optionally, the first DCI may be a DCI having a capability of increasing a priority indication information field but not increasing the priority indication information field, for example, the first DCI may be a DCI having a format of 0_1 or 1_ 1. Exemplarily, DCI with format 0_0 is used for Scheduling PUSCH, and DCI with format 1_0 is used for Scheduling PDSCH or indicating Semi-Persistent Scheduling (SPS) resource release.

In one implementation, assuming that the format of the first DCI is 1_0, when a semi-static HARQ codebook generation method (referred to as Type-1 HARQ-ACK codebook in the protocol) is used, the target information field is a DAI information field.

In one implementation, assuming that the format of the first DCI is 1_0, when a dynamic HARQ codebook generation method (referred to as Type-2 HARQ-ACK codebook in the protocol) is used, the priority of the channel or information corresponding to the first DCI is the lowest priority.

S202, the network equipment sends the first DCI to the terminal equipment.

In one implementation, the terminal device may receive the second DCI. Specifically, the terminal device may receive the second DCI from the communication device. For example, the terminal device may receive the second DCI from the network device.

Optionally, the second DCI may be a DCI having a format of 0_1 or 1_ 1.

Wherein the second DCI includes a priority indication information field for indicating a priority of a channel or information of the second DCI.

TABLE 1

N＝2bits	Priority level
00	Class 1
01	Class 2
10	Class 3
11	Class 4

For example, N is the length of the priority indication information field included in the second DCI, assuming that N is 2, a corresponding relationship between a value of the priority indication information field included in the second DCI and the priority may be as shown in table 1, and if the value of the priority indication information field included in the second DCI is 00, the terminal device may determine that the priority of the channel or the information scheduled by the second DCI is level 1. If the value of the priority indication information field included in the second DCI is 01, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 2. If the value of the priority indication information field included in the second DCI is 10, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 3. If the value of the priority indication information field included in the second DCI is 11, the terminal device may determine that the priority of the channel or the information scheduled by the second DCI is level 4. In table 1, level 2, level 3, and level 4 are different priorities, and illustratively, level 1 may be the highest priority, level 1 is higher than level 2, level 2 is higher than level 3, level 3 is higher than level 4, and level 4 may be the lowest priority.

In one implementation, the channel or information scheduled by the first DCI at least partially overlaps, e.g., partially overlaps or completely overlaps, the channel or information scheduled by the second DCI.

In one implementation, both the first DCI and the second DCI are used to schedule a target channel or target information, where the target signal or the target information is a downlink channel or a downlink signal, or an uplink channel or an uplink signal.

It should be noted that, in the embodiment of the present application, the sequence of receiving the first DCI and the second DCI by the terminal device is not limited, for example, the terminal device may receive the second DCI after receiving the first DCI; if the terminal device can receive the second DCI, the first DCI is received; also, for example, the terminal device may receive the first DCI and the second DCI in the same time period.

S203, the terminal equipment determines the priority of the channel or information scheduled by the first DCI according to the target information domain in the first DCI.

In one implementation, the terminal device may determine the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI and the priority indication information field included in the second DCI.

In one implementation, N bits in the target information field are used to indicate the priority of the channel or information scheduled by the first DCI, where the length of the target information field is L bits, N is the length of the priority indication information field included in the second DCI, L ≧ N, and L and N are positive integers.

In this embodiment, after receiving the first DCI and the second DCI, the terminal device may obtain the length L of the target information field of the first DCI and the length N of the priority indication information field included in the second DCI. When L ≧ N, the terminal device may determine the priority of the channel or information scheduled by the first DCI using N bits in the target information field.

Taking table 1 as an example, assuming that N is 2, the correspondence between the value of N bits in the target information field and the first priority may be as shown in table 1, and if the value of N bits in the target information field is 00, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 1. If the value of N bits in the target information field is 01, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 2. If the value of N bits in the target information field is 10, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 3. If the value of N bits in the target information field is 11, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 4.

In this embodiment, the terminal device can make full use of the target information field for accurate priority indication.

In one implementation, the most significant or least significant of the L bits constitutes N bits.

For example, assuming that the value of L bits is 1001, the highest bit in the L bits constitutes N bits, the terminal device may cut out bits with a length of N from left to right in the L bits, and if N is 2, the value of N bits may be 10. The terminal device may determine the priority of the channel or information scheduled by the first DCI as class 3 by looking up table 1.

For another example, assuming that the value of L bits is 1001, the lowest bit of the L bits constitutes N bits, the terminal device may cut out bits with a length of N from right to left in the L bits, and if N is 2, the value of the N bit may be 01. The terminal device may determine the priority of the channel or information scheduled by the first DCI as class 2 by looking up table 1.

In one implementation, the terminal device may determine the priority of the channel or the information scheduled by the first DCI according to a correspondence between a value of N bits in the target information field and a first priority, where the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and the priority.

For example, assuming that the value of the priority indication information field in the second DCI is 10, N is 2, and the value of the target information field in the first DCI is 100, L is 3, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 3 by looking up table 1. If the value of N bits in the target information field is 00, the terminal device may determine, through the lookup table 1, that the priority indicated by the priority indication information field with the value of 00 is level 1, and therefore obtain that the priority of the channel or information scheduled by the first DCI is level 1. Since level 1 is higher than level 3, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is higher than the priority of the channel or information scheduled by the second DCI.

In one implementation, different values of the priority indication information field included in the second DCI correspond to different priorities. Or, the values and priorities of the priority indication information fields included in the second DCI are in one-to-one correspondence. Taking table 1 as an example, the value of the priority indication information field included in the second DCI is 00, and the corresponding priority is level 1. The value of the priority indication information field included in the second DCI is 01, and the corresponding priority is level 2. The value of the priority indication information field included in the second DCI is 10, and the corresponding priority is level 3. The value of the priority indication information field included in the second DCI is 11, and the corresponding priority is level 4.

In one implementation, M bits in the target information field are used to indicate that the priority of the channel or information corresponding to the first DCI is the target priority, where M is equal to or less than L, and L is less than N, L, N and M are positive integers.

In one implementation, M may be equal to 1, with the target priority being the highest priority or non-highest priority.

For example, if the value of M bits is 1, the terminal device may determine that the priority of the channel or the information scheduled by the first DCI is the highest priority; if the value of the M bits is 0, the terminal device may determine that the priority of the channel or the information scheduled by the first DCI is non-highest priority, for example, lowest priority or priority lower than the highest priority and higher than the lowest priority.

In this embodiment, it may be ensured that the terminal device identifies the highest priority of the channel or the information scheduled by the first DCI and the priority of the channel or the information scheduled by the second DCI, and the signaling overhead is small and the application scenario is wide.

Alternatively, M may be equal to L.

TABLE 2

For example, assuming that N is 3, L is 2, and M is L is 2, the corresponding relationship between the value of M bits in the target information field and the second priority may be as shown in table 2, if the value of L bits is 00, the terminal device may determine, through the lookup table 2, that the priority of the channel or information scheduled by the first DCI is level 1. If the value of L bit is 01, the terminal device may determine, through the lookup table 2, that the priority of the channel or information scheduled by the first DCI is level 2. If the value of L bit is 10, the terminal device may determine, through the lookup table 2, that the priority of the channel or information scheduled by the first DCI is level 3. If the value of L bits is 11, the terminal device may determine, through the lookup table 2, that the priority of the channel or information scheduled by the first DCI is a level after combining level 4 to level 8. In table 2, level 1 to level 8 are different priorities, and for example, level 1 may be the highest priority, level 1 is higher than level 2, level 2 is higher than level 3, level 3 is higher than level 4, and so on, level 8 may be the lowest priority.

For example, assuming that the value of the priority indication information field in the second DCI is 010, N is 3, and the value of the target information field in the first DCI is 11, L is 2, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 3 through the lookup table 2. If the value of M bits in the target information field is 11, the terminal device may determine, through the lookup table 2, that the target priority is a level after combining the level 4 to the level 8, and thus obtain a level after combining the level 4 to the level 8 of the channel or the information scheduled by the first DCI. Since level 3 is higher than the level after combining level 4 to level 8, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is higher than the priority of the channel or information scheduled by the first DCI.

For example, assuming that the value of the priority indication information field in the second DCI is 111, N is 3, and the value of the target information field in the first DCI is 11, L is 2, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 8 by looking up table 2. If the value of M bits in the target information field is 11, the terminal device may determine, through the lookup table 2, that the target priority is a level after combining the level 4 to the level 8, and thus obtain a level after combining the level 4 to the level 8 of the channel or the information scheduled by the first DCI. Since level 8 is the same as the level after combining level 4 to level 8, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is equal to the priority of the channel or information scheduled by the first DCI.

In one implementation, M may be configured by a network device.

In this embodiment, the network device may configure the length of M bits, and the network device sends indication information to the terminal device, where the indication information is used to indicate the length of M bits. The terminal device can determine the length of the M bits according to the indication information, further determine the value of the M bits in the target information domain, and determine the priority of the channel or information scheduled by the first DCI according to the value of the M bits.

In one implementation, the terminal device may determine the priority of the channel or the information scheduled by the first DCI according to a correspondence between a value of M bits in the target information domain and a second priority, where the correspondence of the second priority is a correspondence between the value of M bits in the target information domain and the priority.

In an implementation manner, in the correspondence relationship between the second priorities, one value of M bits in the target information field corresponds to at least two priorities in the plurality of priorities included in the correspondence relationship between the first priorities, where the correspondence relationship between the first priorities is a correspondence relationship between values and priorities of the priority indication information field included in the second DCI, and the correspondence relationship between the first priorities includes the plurality of priorities.

For example, if the value of M bits is 00, the terminal device may determine, through the lookup table 2, that the priority of the channel or information scheduled by the first DCI is level 1. If the value of M bits is 11, the terminal device may determine, through the lookup table 2, that the priority of the channel or the information scheduled by the first DCI is a level after combining the level 4 to the level 8.

TABLE 3

For example, if the value of M bits is 00, the terminal device may determine, through the lookup table 3, that the priority of the channel or information scheduled by the first DCI is level 1. If the value of the M bit is 01, the terminal device may determine, through the lookup table 3, that the priority of the channel or the information scheduled by the first DCI is a level after combining the level 2 and the level 3. If the value of M bits is 10, the terminal device may determine, through the lookup table 3, that the priority of the channel or information scheduled by the first DCI is a level after combining the level 4 and the level 5. If the value of M bits is 11, the terminal device may determine, through the lookup table 3, that the priority of the channel or information scheduled by the first DCI is a level after combining the level 6, the level 7, and the level 8. In table 3, level 1 to level 8 are different priorities, and for example, level 1 may be the highest priority, level 1 is higher than level 2, level 2 is higher than level 3, level 3 is higher than level 4, and so on, level 8 may be the lowest priority.

Optionally, the levels of the at least two priorities are adjacent.

Taking table 2 as an example, the correspondence relationship between the first priorities includes a plurality of priorities of level 1 to level 8. When the value of the M bits is 11, the corresponding relationship of the corresponding first priority includes at least two priority levels among the plurality of priority levels including level 4, level 5, level 6, level 7, and level 8. The levels of level 5 to level 8 are adjacent.

Taking table 3 as an example, the correspondence relationship between the first priorities includes a plurality of priorities of level 1 to level 8. When the value of the M bit is 01, the corresponding relationship of the corresponding first priority includes at least two priority levels of a plurality of priority levels including level 2 and level 3. The levels of level 2 and level 3 are adjacent. When the value of the M bit is 10, the corresponding relationship of the corresponding first priority includes at least two priority levels of a plurality of priority levels including level 4 and level 5. The levels of level 4 and level 5 are adjacent. When the value of the M bit is 11, the corresponding relationship of the corresponding first priority includes at least two priority levels of a plurality of priority levels including level 6, level 7, and level 8. The levels of level 6 to level 8 are adjacent.

In one implementation manner, K values included in the values of M bits in the target information domain in the correspondence relationship of the second priority respectively correspond to K priorities in the plurality of priorities included in the correspondence relationship of the first priority, where different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.

Taking table 2 as an example, when the value of the M bit is 00, the corresponding relationship corresponding to the first priority includes level 1, that is, the highest priority, among the plurality of priorities. When the value of the M bit is 01, the level 2 of the plurality of priorities included in the correspondence relationship corresponding to the first priority, that is, the priority is next to the higher priority of the level 1. When the value of the M bit is 10, the level 3 of the plurality of priorities included in the correspondence relationship corresponding to the first priority, that is, the priority is next to the higher priority of the level 1 and the level 2.

In one implementation, K is equal to 1, or K is less than or equal to 2^M-1。

In one implementation, the K priorities are the highest priorities among the plurality of priorities included in the correspondence relationship of the first priorities.

Taking table 3 as an example, when the value of the M bit is 00, the value corresponds to one priority among a plurality of priorities included in the correspondence relationship of the first priority, and the priority is level 1, that is, the highest priority; when the value of the M bit is 01, corresponding to two priorities in a plurality of priorities included in the corresponding relation of the first priority; when the bit value of the M bit is 10, corresponding to two of the plurality of priorities included in the corresponding relation of the first priority; when the bit value of the M bit is 11, the corresponding relation corresponding to the first priority includes three priorities among the plurality of priorities. As can be seen from this, K is 1, and one priority corresponding to the value 00 of the M bit is the highest priority among the plurality of priorities included in the correspondence relationship of the first priority.

Taking table 2 as an example, when the value of the M bit is 00, the corresponding relation corresponding to the first priority includes one priority among a plurality of priorities, and the priority is level 1; when the value of the M bit is 01, corresponding to one priority in a plurality of priorities included in the corresponding relation of the first priority, wherein the priority is level 2; when the value of the M bit is 10, corresponding to one priority in a plurality of priorities included in the corresponding relation of the first priority, wherein the priority is level 3; when the value of the M bit is 11, the corresponding relationship corresponding to the first priority includes five priorities among the plurality of priorities. Thus, K is not more than 2²The correspondence relationship between the values 00, 01, and 10 of the M bits and the three priorities corresponding to the values 00, 01, and 10 is the level 1 to the level 3 among the plurality of priorities included in the first priority, and the level 1 to the level 3 are the highest priorities among the levels 1 to 8.

In one implementation, the correspondence of the second priority may be flexibly configured by the network device.

In one implementation, the DAI information field is further configured to determine whether a DAI value corresponding to the first DCI is equal to 1. For example, the terminal device may determine a value of the DAI according to the DAI field, and when the value of the DAI is 1, the terminal device may determine that the number of bits of the feedback information corresponding to the channel or the information scheduled by the first DCI is 1; when the value of the DAI is not 1, the terminal device may determine, according to a preset feedback timing set, a channel scheduled by the first DCI or a codebook of feedback information corresponding to the information.

In this embodiment, a partial DAI indication function is still reserved in the DAI information field, and is mainly used to distinguish whether the DAI value in the current DCI is equal to 1.

TABLE 4

DAI	Indicating information
00	DAI value is 1
01	DAI value is 1, grade 1
10	DAI value ≠ 1, level 1
11	DAI value ≠ 1

Illustratively, when the value of the DAI information field is 01 or 10, the terminal device may determine, through the lookup table 4, that the priority of the channel or information scheduled by the first DCI is level 1.

TABLE 5

DAI	Indicating information
00	DAI value is 1, grade 1
01	DAI value ≠ 1, level 1
10	DAI value is 1, not level 1
11	DAI value ≠ 1, non-rank 1

For example, when the value of the DAI information field is 00, the terminal device may determine, by looking up the table 5, that the priority of the channel or information scheduled by the first DCI is level 1. When the value of the DAI information field is 01, the terminal device may determine, through the lookup table 5, that the priority of the channel or information scheduled by the first DCI is level 1. When the value of the DAI information field is 10, the terminal device may determine, through the lookup table 5, that the priority of the channel or information scheduled by the first DCI is not level 1, or is other than level 1. When the value of the DAI information field is 11, the terminal device may determine, through the lookup table 5, that the priority of the channel or information scheduled by the first DCI is non-rank 1.

In this embodiment, for the 15 th Release (Release 15, Rel-15) Type-1 Hybrid Automatic Repeat reQuest (HARQ) codebook (codebook), there is a special case that when the terminal device receives only one DCI in the CSS and where DAI is 1, the codebook includes only 1-bit information, otherwise the size of the codebook depends on the configuration of the feedback timing set. Thus distinguishing whether the DAI is equal to 1 enables optimization of the codebook size. By this embodiment the ability to optimize codebook can be preserved while providing priority indication.

Optionally, the first DCI is a DCI with a format 1_0 transmitted in a Common Search Space (CSS).

In one implementation, different DAI information fields correspond to different priorities.

TABLE 6

DAI	Indicating information
00	Class 1
01	Class 2
10	Class 3
11	Class 4

For example, when the value of the DAI information field is 00, the terminal device may determine, through the lookup table 6, that the priority of the channel or information scheduled by the first DCI is level 1. When the value of the DAI information field is 01, the terminal device may determine, through the lookup table 6, that the priority of the channel or information scheduled by the first DCI is level 2. When the value of the DAI information field is 10, the terminal device may determine, through the lookup table 6, that the priority of the channel or information scheduled by the first DCI is level 3. When the value of the DAI information field is 11, the terminal device may determine, through the lookup table 6, that the priority of the channel or information scheduled by the first DCI is level 4.

Optionally, the first DCI is a DCI with a format 1_0 transmitted in a UE-specific search space (USS).

In the application, the terminal device may determine the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI, and provide a priority indication on the premise of ensuring that the load size of the first DCI is not changed (i.e., compatibility is not affected, blind detection of the terminal is not affected, and basic data connection is not affected) to support flexible scheduling of the URLLC.

The embodiment of the present application provides another downlink control signaling transmission method, which is applied to the above exemplary communication system, and the method includes: the terminal equipment receives first DCI, and the first DCI does not comprise a priority indication information field. If the first DCI is a DCI with a format 0_0, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is a preset priority. The preset priority may be the highest priority or the lowest priority.

The prioritization scheme may be agreed upon by a protocol or configured by the network device through higher layer signaling.

Referring to fig. 3, fig. 3 is another downlink control signaling transmission method provided in the embodiment of the present application, which is applied to the above exemplary communication system, and the method includes:

s301, the network equipment configures the format of the first DCI.

The network device may configure a format of the first DCI, the format of the first DCI being used to indicate a priority of channels or information scheduled by the first DCI. If the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or if the first DCI is a DCI transmitted in the CSS and having a format of 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority; or if the first DCI is a DCI of format 0_0 transmitted in the USS, the priority of the channel or information scheduled by the first DCI is the lowest priority.

S302, the network equipment sends the first DCI to the terminal equipment.

S303, the terminal equipment determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI.

In one implementation, if the format of the first DCI is 0_0, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority.

In one implementation, if the first DCI is a DCI of format 0_0 transmitted in the CSS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority. For example, if the terminal device receives the first DCI having the format 0_0 in the CSS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority.

In one implementation, if the first DCI is a DCI with a format of 0_0 transmitted in the USS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the lowest priority. For example, if the terminal device receives the first DCI with format 0_0 in the USS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the lowest priority.

In the application, the terminal device may determine the priority of the channel or the information scheduled by the first DCI according to the format of the first DCI, and provide a priority indication on the premise of ensuring that the load size of the first DCI is not changed (i.e., compatibility is not affected, blind detection of the terminal is not affected, and basic data connection is not affected) to support flexible scheduling of the URLLC.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that the terminal device and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal device may be divided into the functional units according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In the case of an integrated unit, fig. 4 shows a block diagram of a possible functional unit of the terminal device according to the above embodiment, and the terminal device 400 includes: a processing unit 402 and a communication unit 403. Processing unit 402 is configured to control and manage actions of the terminal device, for example, processing unit 402 is configured to support the terminal device to perform step S203 in fig. 2, step S303 in fig. 3, and/or other processes for the techniques described herein. The communication unit 403 is used to support communication between the terminal device and other devices, for example, communication with network devices. The terminal device may further comprise a storage unit 401 for storing program codes and data of the terminal device.

The processing unit 402 may be a processor or a controller, the communication unit 403 may be a communication interface, a transceiver circuit, a radio frequency chip, and the like, and the storage unit 401 may be a memory.

The communication unit 403 is configured to receive a first DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a Downlink Assignment Index (DAI) field in the first DCI;

the processing unit 402 is configured to determine a priority of a channel or information scheduled by the first DCI according to a format of the first DCI or a target information field in the first DCI.

In one possible example, the processing unit 402 determines, according to the format of the first DCI, a priority of a channel or information scheduled by the first DCI, where the priority is specifically used to:

when the format of the first DCI is 0_0, determining that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, determining that the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, determining that the priority of a channel scheduled by the first DCI is the lowest priority.

In one possible example, the communication unit 403 is further configured to receive a second DCI, where the second DCI includes a priority indication information field.

In one possible example, the processing unit 402 determines, according to the target information field in the first DCI, a priority of a channel or information scheduled by the first DCI, where the priority is specifically used to:

and determining the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included by the second DCI.

In one possible example, the processing unit 402 determines the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI, and is specifically configured to:

and determining the priority of the channel or information scheduled by the first DCI according to the corresponding relation between the value of N bits in the target information domain and the first priority, wherein the corresponding relation of the first priority is the corresponding relation between the value of the priority indication information domain included in the second DCI and the priority, and N is the length of the priority indication information domain included in the second DCI.

In one possible example, different values of the priority indication information field included in the second DCI correspond to different priorities.

and determining the priority of the channel or information scheduled by the first DCI according to a corresponding relation between the value of the M bits in the target information domain and a second priority, wherein the corresponding relation of the second priority is a corresponding relation between the value of the M bits in the target information domain and the priority, M is less than or equal to L, L is less than N, L, N and M are positive integers, L is the length of the target information domain, and N is the length of a priority indication information domain included in the second DCI.

In one possible example, in the correspondence relationship between the second priorities, one value of M bits in the target information field corresponds to at least two priorities in a plurality of priorities included in a correspondence relationship between a first priority and a value of a priority indication information field included in the second DCI, where the correspondence relationship between the first priority includes the plurality of priorities.

In one possible example, the levels of the at least two priorities are adjacent.

In a possible example, K values included in the values of the M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in the plurality of priorities included in the correspondence of the first priority, where different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.

In one possible example, K is equal to 1, or K is less than or equal to 2^M-1。

In one possible example, the K priorities are the highest priorities among the plurality of priorities included in the correspondence relationship of the first priorities.

In a possible example, the processing unit 402 is further configured to determine a value of a DAI according to the DAI field; and when the value of the DAI is 1, determining that the bit number of feedback information corresponding to the channel or information scheduled by the first DCI is 1; and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set

In one possible example, the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.

When the processing unit 402 is a processor, the communication unit 403 is a communication interface, and the storage unit 401 is a memory, the terminal device according to the embodiment of the present application may be the terminal device shown in fig. 5.

In the case of an integrated unit, fig. 6 shows a block diagram of a possible functional unit of the network device involved in the above embodiment, and the network device 600 includes: a processing unit 602 and a communication unit 603. Processing unit 602 is configured to control and manage actions of the network device, for example, processing unit 602 is configured to support the network device to perform steps S201 and S202 in fig. 2, steps S301 and S302 in fig. 3, and/or other processes for the techniques described herein. The communication unit 603 is configured to support communication between the network device and other devices, for example, communication between the network device and the terminal device. The network device may further comprise a storage unit 601 for storing program codes and data of the terminal device.

The processing unit 602 may be a processor or a controller, the communication unit 603 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like, and the storage unit 601 may be a memory.

The processing unit 602 is configured to configure a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

a communication unit 603, configured to send the first DCI to a terminal device.

In one possible example, when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, the priority of a channel scheduled by the first DCI is the lowest priority.

In one possible example, the communication unit 603 is further configured to transmit a second DCI to the terminal device, where the second DCI includes a priority indication information field.

In one possible example, the target information field and the priority indication information field included in the second DCI are used to determine the priority of the channel or information scheduled by the first DCI.

In one possible example, the priority of the channel or the information scheduled by the first DCI is determined according to a correspondence between a value of N bits in the target information field and a first priority, where the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and N is a length of the priority indication information field included in the second DCI.

In one possible example, the priority of the channel or the information scheduled by the first DCI is determined according to a correspondence between a value of M bits in the target information field and a second priority, where the correspondence of the second priority is a correspondence between a value of M bits in the target information field and a priority, M is equal to or less than L, L < N, L, N and M are positive integers, L is a length of the target information field, and N is a length of a priority indication information field included in the second DCI.

In one possible example, the DAI field is used to indicate a value of DAI;

when the value of the DAI is 1, the bit number of feedback information corresponding to a channel or information scheduled by the first DCI is 1;

and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set.

In one possible example, the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.

When the processing unit 602 is a processor, the communication unit 603 is a transceiver, and the storage unit 601 is a memory, the network device according to the embodiment of the present application may be the network device shown in fig. 7.

In another embodiment, fig. 6 shows a block diagram of possible functional units of the network device involved in the above embodiments, where:

a processing unit 602, configured to configure a priority determination rule;

a communication unit 603, configured to send a first DCI to a terminal device, where the first DCI does not include a priority indication information field;

wherein, if the first DCI is DCI format 0_0 transmitted in the CSS, the priority determination rule is configured to indicate that the priority of the channel or information scheduled by the first DCI is the highest priority; if the first DCI is DCI format 0_0 transmitted in the USS, the priority determination rule is used to indicate that the priority of the channel or information scheduled by the first DCI is the lowest priority.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal device in the above method embodiment.

Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the above method embodiments for a terminal device. The computer program product may be a software installation package.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

A method for transmitting downlink control signaling is characterized by comprising the following steps:

a terminal device receives a first downlink control signaling DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a Downlink Assignment Index (DAI) field in the first DCI;

and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the format of the first DCI or the target information domain in the first DCI.
The method of claim 1, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the format of the first DCI comprises:

when the format of the first DCI is 0_0, determining that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, determining that the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, determining that the priority of a channel scheduled by the first DCI is the lowest priority.
The method of claim 1, further comprising

And the terminal equipment receives second DCI, wherein the second DCI comprises a priority indication information domain.
The method of claim 3, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI comprises:

and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the target information field and the priority indication information field included by the second DCI.
The method of claim 4, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI comprises:

and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the corresponding relation between the value of the N bits in the target information domain and the first priority, wherein the corresponding relation of the first priority is the corresponding relation between the value and the priority of the priority indication information domain included in the second DCI, and N is the length of the priority indication information domain included in the second DCI.
The method of claim 5, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
The method of claim 4, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI comprises:

and the terminal equipment determines the priority of the channel or the information scheduled by the first DCI according to the corresponding relation between the value of the M bits in the target information domain and a second priority, wherein the corresponding relation of the second priority is the corresponding relation between the value of the M bits in the target information domain and the priority, M is less than or equal to L, L is less than N, L, N and M are positive integers, L is the length of the target information domain, and N is the length of a priority indication information domain included in the second DCI.
The method of claim 7, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a correspondence of first priorities, wherein the correspondence of the first priorities is a correspondence between values and priorities of priority indication information fields included in the second DCI, and the correspondence of the first priorities includes a plurality of priorities.
The method of claim 8, wherein the levels of the at least two priorities are adjacent.
The method of claim 7, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
The method of claim 10, wherein K is equal to 1, or K is less than or equal to 2^M-1。
The method according to claim 10, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
The method of any one of claims 1-12, further comprising:

the terminal equipment determines the value of the DAI according to the DAI domain;

when the value of the DAI is 1, the terminal device determines that the bit number of the feedback information corresponding to the channel or the information scheduled by the first DCI is 1;

and when the DAI value is not 1, the terminal equipment determines the channel scheduled by the first DCI or a codebook of feedback information corresponding to the information according to a preset feedback time sequence set.
The method of any of claims 1 or 3-12, wherein the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.
A method for transmitting downlink control signaling is characterized by comprising the following steps:

a network device configures a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

and the network equipment sends the first DCI to terminal equipment.
The method of claim 15, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, the priority of a channel scheduled by the first DCI is the lowest priority.
The method of claim 15, wherein the method further comprises:

and the network equipment sends a second DCI to the terminal equipment, wherein the second DCI comprises a priority indication information domain.
The method of claim 17, wherein the target information field and the priority indication information field included in the second DCI are used to determine a priority of a channel or information scheduled by the first DCI.
The method of claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between a value of N bits in the target information field and a first priority, where the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and N is a length of the priority indication information field included in the second DCI.
The method of claim 19, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
The method of claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between values of M bits in the target information field and a second priority, wherein the correspondence of the second priority is a correspondence between values of M bits in the target information field and priorities, M is equal to or less than L, L < N, L, N and M are positive integers, L is a length of the target information field, and N is a length of a priority indication information field included in the second DCI.
The method of claim 21, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a correspondence of first priorities, wherein the correspondence of the first priorities is a correspondence between values and priorities of priority indication information fields included in the second DCI, and the correspondence of the first priorities includes a plurality of priorities.
The method of claim 22, wherein the levels of the at least two priorities are adjacent.
The method of claim 21, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
The method of claim 24, wherein K is equal to 1, or K is less than or equal to 2^M-1。
The method according to claim 24, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
The method of any one of claims 15-26, wherein the DAI field is used to indicate a value of DAI;

when the value of the DAI is 1, the bit number of feedback information corresponding to a channel or information scheduled by the first DCI is 1;

and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set.
The method of any of claims 15 or 17-26, wherein the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.
A terminal device, comprising a processing unit and a communication unit,

the communication unit is configured to receive a first DCI, where a format of the first DCI or a target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

and the processing unit is configured to determine a priority of a channel or information scheduled by the first DCI according to the format of the first DCI or a target information field in the first DCI.
The terminal device of claim 29, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI, and is specifically configured to:

when the format of the first DCI is 0_0, determining that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, determining that the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, determining that the priority of a channel scheduled by the first DCI is the lowest priority.
The terminal device of claim 29,

the communication unit is further configured to receive a second DCI, where the second DCI includes a priority indication information field.
The terminal device of claim 31, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to a target information field in the first DCI, and is specifically configured to:

and determining the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included by the second DCI.
The terminal device of claim 32, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI, and is specifically configured to:

and determining the priority of the channel or information scheduled by the first DCI according to the corresponding relation between the value of N bits in the target information domain and the first priority, wherein the corresponding relation of the first priority is the corresponding relation between the value of the priority indication information domain included in the second DCI and the priority, and N is the length of the priority indication information domain included in the second DCI.
The terminal device of claim 33, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
The terminal device of claim 32, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the target information field and a priority indication information field included in the second DCI, and is specifically configured to:

and determining the priority of the channel or information scheduled by the first DCI according to a corresponding relation between the value of the M bits in the target information domain and a second priority, wherein the corresponding relation of the second priority is a corresponding relation between the value of the M bits in the target information domain and the priority, M is less than or equal to L, L is less than N, L, N and M are positive integers, L is the length of the target information domain, and N is the length of a priority indication information domain included in the second DCI.
The terminal device of claim 35, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities among a plurality of priorities included in a correspondence of a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and the correspondence of the first priority includes a plurality of priorities.
The terminal device of claim 36, wherein the levels of the at least two priorities are adjacent.
The terminal device of claim 35, wherein K values included in the values of M bits in the target information field in the correspondence relationship of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence relationship of the first priority, where different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
The terminal device of claim 38, wherein K is equal to 1, or K is less than or equal to 2^M-1。
The terminal device according to claim 38, wherein the K priorities are highest priorities among a plurality of priorities included in the correspondence relationship of the first priorities.
The terminal device according to any of claims 29-40,

the processing unit is further used for determining the value of the DAI according to the DAI domain; and when the value of the DAI is 1, determining that the bit number of feedback information corresponding to the channel or information scheduled by the first DCI is 1; and when the DAI value is not 1, determining a codebook of feedback information corresponding to the channel or information scheduled by the first DCI according to a preset feedback time sequence set.
The terminal device of any of claims 29 or 31-40, wherein the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.
A network device, comprising:

a processing unit, configured to configure a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or the target information field in the first DCI is used to indicate a priority of a channel or information scheduled by the first DCI, and the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

and the communication unit is used for sending the first DCI to terminal equipment.
The network device of claim 43, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in a common search space, the priority of a channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in an exclusive search space, the priority of a channel scheduled by the first DCI is the lowest priority.
The network device of claim 43,

the communication unit is further configured to send a second DCI to the terminal device, where the second DCI includes a priority indication information field.
The network device of claim 45, wherein a priority indication information field included in the target information field and the second DCI is used to determine a priority of a channel or information scheduled by the first DCI.
The network device of claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between a value of N bits in the target information field and a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and N is a length of the priority indication information field included in the second DCI.
The network device of claim 47, wherein different values of a priority indication information field included in the second DCI correspond to different priorities.
The network device of claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to a correspondence between values of M bits in the target information field and a second priority, wherein the correspondence of the second priority is a correspondence between values of M bits in the target information field and priorities, M is equal to or less than L, L < N, L, N and M are positive integers, L is a length of the target information field, and N is a length of a priority indication information field included in the second DCI.
The network device of claim 49, wherein one value of M bits in the target information field in the correspondence of the second priorities corresponds to at least two priorities in a plurality of priorities included in a correspondence of a first priority, wherein the correspondence of the first priority is a correspondence between a value of a priority indication information field included in the second DCI and a priority, and wherein the correspondence of the first priority includes a plurality of priorities.
The network device of claim 50, wherein the levels of the at least two priorities are adjacent.
The network device of claim 49, wherein K values included in the values of M bits in the target information field in the correspondence of the second priority respectively correspond to K priorities in a plurality of priorities included in the correspondence of the first priority, wherein different values in the K values correspond to different priorities in the K priorities, and K is a positive integer.
The network device of claim 52, wherein K is equal to 1, or K is less than or equal to 2^M-1。
The network device of claim 52, wherein the K priorities are the highest priorities among a plurality of priorities included in the correspondence of the first priorities.
The network device of any of claims 43-54, wherein the DAI field is to indicate a value of a DAI;

when the value of the DAI is 1, the bit number of feedback information corresponding to a channel or information scheduled by the first DCI is 1;

and when the DAI value is not 1, determining the channel scheduled by the first DCI or the codebook of the feedback information corresponding to the information according to a preset feedback time sequence set.
The network device of any one of claims 43 or 45-54, wherein the format of the first DCI is 1_0 or 0_ 0; or

The first DCI is a DCI of format 1_0 transmitted in a common search space.
A terminal device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-14.
A network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 15-28.
A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-14.
A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 15-28.